From: Paolo Abeni <pab...@redhat.com> Date: Mon, 30 Jul 2018 14:30:41 +0200
> This series is aimed at improving the act_mirred redirect performances. > Such action is used by OVS to represent TC S/W flows, and it's current largest > bottle-neck is the need for a skb_clone() for each packet. > > The first 2 patches introduce some cleanup and safeguards to allow extending > tca_result - we will use it to store RCU protected redirect information - and > introduce a clear separation between user-space accessible tcfa_action > values and internal values accessible only by the kernel. > Then a new tcfa_action value is introduced: TC_ACT_REINJECT, similar to > TC_ACT_REDIRECT, but preserving the mirred semantic. Such value is not > accessible from user-space. > The last patch exploits the newly introduced infrastructure in the act_mirred > action, to avoid a skb_clone, when possible. > > Overall this the above gives a ~10% performance improvement in forwarding > tput, > when using the TC S/W datapath. ... Series applied, thank you.
